This is a toolset that makes it easier for network administrators to configure IT systems in compliance with U.S. Department of Defense requirements, and to document that compliance as automatically as possible, at several levels of detail.
CMITS contains many Puppet modules that implement portions of compliance with about 1000 requirements from nine DoD-level policy documents. These modules make it easier for administrators to construct a complete Puppet manifest which tells IT systems how to configure themselves in a compliant fashion. ("Puppet is IT automation software that helps system administrators manage infrastructure throughout its lifecycle" <http://puppetlabs.com/puppet/what-is-puppet/>.)
CMITS also contains scripts and extensions necessary to create a unified policy document, which lays out in complete detail how systems are configured using Puppet, and offers a single place to document IT-related processes, especially those necessary for compliance. The scripts and extensions also create automatic summaries, cross-references and indices, so that auditors can easily find assertions about compliance.
First, look at the cmits-example.pdf file in the build-products folder. This is an example of a unified policy document that CMITS can build.
Try building your own copy of the document. You may need to install some software before you can do so. See the cmits-example/unified-policy-document/README.txt and the build-products/README.txt.
To get your own hosts configuring themselves according to the policy you see, you'll need to obtain Puppet, likely set up a puppetmaster, and write manifests that use the modules given to configure your hosts, or nodes. For directions on these things, check out the resources provided by Puppet Labs <http://puppetlabs.com>.